<template>
  <!-- 工作日历 -->
  <div>
    <el-row type="flex" justify="end">
      <el-select
        v-model="currentYear"
        size="small"
        style="width:120px"
        @change="dateChange"
      >
        <el-option v-for="item in yearList" :key="item" :label="item" :value="item">{{ item }}</el-option>
      </el-select>
      <el-select
        v-model="currentMonth"
        size="small"
        style="width:120px;margin-left:10px;"
        @change="dateChange"
      >
        <el-option v-for="item in 12" :key="item" :label="item" :value="item">{{ item }}</el-option>
      </el-select>
    </el-row>
    <el-calendar v-model="currentDate">
      <template v-slot:dateCell="{date}">
        <div class="date-content">
          <span class="text"> {{ date.getDate() }}</span>
          <span v-if="isWeek(date)" class="rest">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  // filters: {
  //   getDay(value) {
  //     const day = value.split('-')[2]
  //     return day.startsWith('0') ? day.substr(1) : day
  //   }
  // },
  props: {
    startDate: {
      type: Date,
      // 需要一个回调函数
      default: () => new Date()
    }
  },
  data() {
    return {
      currentYear: new Date().getFullYear(), // 当前月份
      currentMonth: new Date().getMonth() + 1, // 当前年份
      yearList: [], // 要遍历的年的数组
      currentDate: null // 当前时间
    }
  },
  watch: {
    currentDate: {
      deep: true,
      handler(date) {
        this.currentYear = date.getFullYear()
        this.currentMonth = date.getMonth() + 1
      }
    }
  },
  created() {
    // 根据当前的年 生成可选年份 前后各加5年
    this.yearList = Array.from(Array(11), (value, index) => this.currentYear + index - 5)
    this.dateChange()
  },
  methods: {
    // 是否是休息日
    isWeek(value) {
      return value.getDay() % 6 === 0
    },
    // 年月份改变之后
    dateChange() {
      this.currentDate = new Date(`${this.currentYear}-${this.currentMonth}-1`) // 以当前月的1号为起始
    }
  }
}
</script>

  <style  scoped>
    ::v-deep .el-calendar-day {
    height:  auto;
   }
   ::v-deep .el-calendar-table__row td, ::v-deep .el-calendar-table tr td:first-child,   .el-calendar-table__row td.prev{
    border:none;
   }
  .date-content {
    height: 40px;
    text-align: center;
    line-height: 40px;
    font-size: 14px;
  }
  .date-content .rest {
    color: #fff;
    border-radius: 50%;
    background: rgb(250, 124, 77);
    width: 20px;
    height: 20px;
    line-height: 20px;
    display: inline-block;
    font-size: 12px;
    margin-left: 10px;
  }
  .date-content .text{
    width: 20px;
    height: 20px;
    line-height: 20px;
   display: inline-block;

  }
  ::v-deep .el-calendar-table td.is-selected .text{
     background: #409eff;
     color: #fff;
     border-radius: 50%;
   }
   ::v-deep .el-calendar__header {
     display: none
   }
  </style>
